3,421,105 research outputs found

    UNH Hosts Popular Poinsettia Open House Dec. 4-6, 2014

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    An "All Hands" Call to the Social Science Community: Establishing a Community Framework for Complexity Modeling Using Agent Based Models and Cyberinfrastructure

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    To date, many communities of practice (COP) in the social sciences have been struggling with how to deal with rapidly growing bodies of information. Many CoPs across broad disciplines have turned to community frameworks for complexity modeling (CFCMs) but this strategy has been slow to be discussed let alone adopted by the social sciences communities of practice (SS-CoPs). In this paper we urge the SS-CoPs that it is timely to develop and establish a CBCF for the social sciences for two major reasons: the rapid acquisition of data and the emergence of critical cybertools which can facilitate agent-based, spatially-explicit models. The goal of this paper is not to prescribe how a CFCM might be set up but to suggest of what components it might consist and what its advantages would be. Agent based models serve the establishment of a CFCM because they allow robust and diverse inputs and are amenable to output-driven modifications. In other words, as phenomena are resolved by a SS-CoP it is possible to adjust and refine ABMs (and their predictive ability) as a recursive and collective process. Existing and emerging cybertools such as computer networks, digital data collections and advances in programming languages mean the SS-CoP must now carefully consider committing the human organization to enabling a cyberinfrastructure tool. The combination of technologies with human interfaces can allow scenarios to be incorporated through 'if' 'then' rules and provide a powerful basis for addressing the dynamics of coupled and complex social ecological systems (cSESs). The need for social scientists to be more engaged participants in the growing challenges of characterizing chaotic, self-organizing social systems and predicting emergent patterns makes the application of ABMs timely. The enabling of a SS-CoP CFCM human-cyberinfrastructure represents an unprecedented opportunity to synthesize, compare and evaluate diverse sociological phenomena as a cohesive and recursive community-driven process.Community-Based Complex Models, Mathematics, Social Sciences

    Modeling Scientists as Agents. How Scientists Cope with the Challenges of the New Public Management of Science

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    The paper at hand applies agent-based modeling and simulations (ABMS) as a tool to reconstruct and to analyze how the science system works. A Luhmannian systems perspective is combined with a model of decision making of individual actors. Additionally, changes in the socio-political context of science, such as the introduction of Ăąâ‚ŹĆŸnew public management\", are considered as factors affecting the functionality of the system as well as the decisions of individual scientists (e.g. where to publish their papers). Computer simulation helps to understand the complex interplay of developments at the macro (system) and the micro (actor) level.Systems Theory, Theory of Action and Decision Making, Academic Publication System, Science System, New Public Management, Agent-Based Modeling and Simulation

    Studying Organisational Topology with Simple Computational Models

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    The behaviour of many complex systems is influenced by the underlying network topology. In particular, this applies to social systems in which people or organisational units collaboratively solve problems. Network rewiring processes are one useful tool in understanding the relationship between network topology and behaviour. Here we use the Kawachi network rewiring process, together with three simple simulation models of organisational collaboration, to investigate the network characteristics that influence performance. The simulation models are based on the Assignment Problem, the Kuramoto Model from physics, and a novel model of collaborative problem-solving which involves finding numbers with certain characteristics, the existence of which is guaranteed by Lagrange\'s Theorem. For all three models, performance is best when the underlying organisational network has a low average distance between nodes. In addition, the third model identified long-range connectivity between nodes as an important predictor of performance. The commonly-used clustering coefficient, which is a measure of short-range connectivity, did not affect performance. We would expect that long-range network connectivity would also influence the behaviour of other complex systems displaying global self-synchronization. The paper also demonstrates the utility of simple computational models in studying issues of organisational topology.Network Rewiring, Small World Networks, Self-Synchronization, Agent Simulation, Collaboration, Problem Solving

    Does Empirical Embeddedness Matter? Methodological Issues on Agent-Based Models for Analytical Social Science

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    The paper deals with the use of empirical data in social science agent-based models. Agent-based models are too often viewed just as highly abstract thought experiments conducted in artificial worlds, in which the purpose is to generate and not to test theoretical hypotheses in an empirical way. On the contrary, they should be viewed as models that need to be embedded into empirical data both to allow the calibration and the validation of their findings. As a consequence, the search for strategies to find and extract data from reality, and integrate agent-based models with other traditional empirical social science methods, such as qualitative, quantitative, experimental and participatory methods, becomes a fundamental step of the modelling process. The paper argues that the characteristics of the empirical target matter. According to characteristics of the target, ABMs can be differentiated into case-based models, typifications and theoretical abstractions. These differences pose different challenges for empirical data gathering, and imply the use of different validation strategies.Agent-Based Models, Empirical Calibration and Validation, Taxanomy of Models

    Gender Life Course Transitions from the Nuclear Family in England and Wales 1981-2001

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    In recent years there has been much political debate in the popular media about the fate of the nuclear family in the UK. Very little work has been done, using population data, to actually demonstrate the decline, or indeed continuance of this type of household formation. In this paper we use Office for National Statistics (ONS) longitudinal census data, from England and Wales, to explore the formation, dissolution and continuance of the nuclear family household over a twenty year period (1981- 2001). Our findings indicate a continuing importance of this household arrangement, however routes into and trajectories from nuclear family households take different forms for men and women across the life course.Nuclear Family; Households; Gender; Longitudinal Analysis

    Governing Through Standards: Networks, Failure and Auditing

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    This article seeks to understand network governance within the context of the North American automotive industry. Within this industry, original equipment manufacturers (lead firms) have outsourced a substantial portion of parts production over the last 30 years. This paper argues that in an aim to govern their supplier relations, North American lead firms imposed quality assurance standards upon their suppliers. In addition, this paper considers how nodes situated in the network are called upon to pre-emptively manage failures. Utilizing the quality assurance standards themselves, and 15 in-depth interviews with quality assurance managers at different part supplier plants, this article explores the technologies of performance used to manage failures. The focus of this paper is on the creation of part narratives, and particularly, the quality audit and its role in governing the conduct of part suppliers at-a-distance. Lastly, this paper focuses on the network prudential subject who is called upon to pre-emptively manage failures on behalf of the network.Apparatus, Networks, Standards, Failure, Auditing
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